533 submission objects with incomplete data

[itsthejoker]

>>> from django.db.models.functions import Length
>>> asdf = Submission.objects.filter(url="https://example.com").annotate(id_len=Length("original_id")).filter(id_len__lt=10)
>>> asdf.count()
533

I don't know why these exist, but we have a handful of submissions where the urls are all "example.com" but they point at legitimate content. Need to investigate.